Download SE-G1 Technical manual

Lodam Compressor Protection Module
Technical manual
Version 3.0
SE-G1
Contents
1. Read this first. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Reading instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2. User manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3. Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. How to.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5. Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.1. Temperature monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.2. Rotation direction monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.3. Phase failure monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6. Examples of application use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.1. Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.2. Compressor with soft starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.3. Legend for the schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.4. Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7. Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8. Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9. Trouble shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
10. Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
11. Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Page 2
Technical manual SE-G1
Page 3
1. Read this first
The contents of this manual are subject to change without
notice. Lodam electronics holds the copyright to this user’s
manual. The user shall follow any instructions given in this
user manual entirely and not only partly. Any non-following of this user manual result in exclusion of all warranties,
1.1. Reading instructions
The following symbols are used to draw the reader’s
attention­to different warning levels.
Importan information.
guarantees, and liabilities. Copyright© 2014 by Lodam
electronics a/s. All Rights Reserved.
Danger!! General danger.
Disposing of the parts of the controller:
INFORMATION FOR USERS ON THE
Danger!! High voltage. Danger of electrical current
CORRECT HANDLING OF WASTE ELECTRI-
or voltage.
CAL AND ELECTRONIC EQUIPMENT (WEEE)
In reference to European Union directive 2002/96/
EC issued on 27 January 2003 and the related national
legislation, please note that:
1. WEEE cannot be disposed of as municipal waste and
such waste must be collected and disposed of separately;
2. The public or private waste collection systems defined
by local legislation must be used. In addition, the equipment can be returned to the distributor at the end of its
1.2. User manual
Before installation the user should be thoroughly
familiarized with this user manual, especially with
purposes, installation and operation.
Special care should be taken when installing and connecting external equipment (PTC sensor, high voltage etc) and
handling the modules correctly according to protection
against ESD.
working life when buying new
Installation of the SE-G1 must be performed by
equipment;
authorized personnel only. All warranties are
3. The equipment may contain hazardous substances:
excluded in case installation is performed by
the improper use or incorrect disposal of such may
unauthorized personnel or in case the SE-G1 has not been
have negative effects on human health and on the
correctly installed.
environment;
4. The symbol (crossed-out wheeled bin) shown on the
product or on the packaging and on the instruction
1.3. Safety
sheet indicates that the equipment has been intro-
The SE-G1 is a protection device and not a safety
duced onto the market after 13 August 2005 and that it
component according to the Machinery Directive
must be disposed of separately;
and can not be used in “medical” or “life support”
5. In the event of illegal disposal of electrical and elec-
equipment.
tronic waste, the penalties are specified by local waste
disposal legislation.
Before plant commissioning the service technician shall
ensure that personal safety requirements are met in
conformity with the Machinery Directive on the basis of
safety estimations.
Electrical plant failures are to be immediately
solved, even though no immediate danger exists;
the SE-G1 and motor must be without power.
Page 4
Technical manual SE-G1
2. General
3. Definitions
The protection device SE-G1 is used for protection of scroll
Product range
compressors equipped with softstarters. Its relay is used in
the safety chain for the compressor and will open in case
Definitions
ESD
Electro Static Discharge
HW
Hardware/electronics
Different scenarios can threaten the lifetime of the com-
NC
Normally Closed (relay)
pressor where the SE-G1 can protect:
NO
Normally Open (relay)
PTC
Positive Temperature Coefficient (sensor element)
of a failure.
• Overheating: The SE-G1 will protect against overheating
by monitoring motor temperature by means of PTC-sensors mounted in the motors windings or in the hotgas. In
case of overheating, the module will lock out and open
the relay.
• Wrong rotation direction: The SE-G1 monitors the
rotation direction of the phases at compressor start and
will lock out and open the relay in case of wrong rotation
direction.
• Phase failure: If a phase is missing at start up, SE-G1
opens the relay for 6 minutes. After this period a start
is allowed again. Only a number of retries are allowed
before a permanent lock out is performed.
The SE-G1 first starts monitoring of the phases 5 seconds
after start-up to allow the system with the softstarter to
become stable.
Page 5
4. How to...
Use the SE-G1 with a Scroll compressor
Terminal box
12
2
k
Alarm lamp
Black
14
n
L
Contactor coil
e
Brown
R
11
Blue
Control
External
Safety
1
N
Reset
Optional discharge
gas temperature
sensor
L
SE -G1
M1
L2
L1
L3
M2
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Technical manual SE-G1
5. Functions
• If the measured PTC resistance is above 11,4 kΩ: The
relay is not energized and the module is locked and must
be powered off to be released.
The SE-G1 has several monitoring functions which are
5.2. Rotation direction monitoring
listed in the following.
The SE-G1 waits 5 seconds after compressor start for
the softstarter and then the 3 phases for the compressor
5.1. Temperature monitoring
are monitored for 5 to 10 seconds against wrong rotation
One of the functions of the SE-G1 is to work as a motor
protection module. By monitoring the resistance in a PTC
sensor, it will open its relay when the resistance of the PTC
sensor increases above the limit as shown below.
direction (wrong phase sequence). In case of a wrong
rotation direction, the relay is immediately de-energized
and the SE-G1 locks.
A manual reset must be done by removing power from the
The PTC-sensor could for example be according to DIN
module for minimum 5 seconds and then applying it again.
44081/82. The resistance of these PTC-sensors is not
linear but give a well-defined steep rise in resistance when
When the compressor is stopped, a pressure difference in
the threshold temperature of the PTC-sensor is reached.
the compressor can make it turn backwards and thereby
generating a false phase sequence. Therefore the detec-
This is detected by the protective device and the relay is
released and thereby cutting the control power as shown
on the diagram below.
Alarm
14
11
12
phase loss during the first 5 to 10 seconds of monitoring
the SE-G1 de-energizes the relay and thereby breaks the
Relay
Off
14
11
12
PTC temperature
11.4 kOhm
Phase failure monitoring waits for the softstarter and is
started 5 seconds after compressor start. In case of a
On
2.9 kOhm
after a compressor stop to avoid a false alarm condition.
5.3. Phase failure monitoring
Relay
Lockout
On
tion of phase sequence is disabled the first 10 seconds
RPTC
Since the increase in resistance is so steep, from 1 up to 9
PTC-sensors can be coupled in series without raising the
actual temperature threshold more than a few degrees
Celsius.
security chain.
If the module is in the locked state, a manual reset must
be done by removing power from the module for minimum
5 seconds and then applying it again.
The count of the 4 events in sequence is reset when start
is detected with no “phase loss”.
There is a restart blocking function to prevent a motor
from being started too soon after having been overheated.
A manual reset must be done by removing power from the
module for minimum 5 seconds and then applying it again.
When power is turned on to the SE-G1 module, the PTC
resistance is measured:
• If the measured PTC resistance is below 2,9 kΩ: The relay
is energized immediately
• If the measured PTC resistance is between 2,9 kΩ and
11,4 kΩ: The relay is first energized when the resistance is
below 2,9 kΩ - i.e.the compressor has cooled down.
Page 7
6. Examples of
application use
6.1. Connection
4,5
3,2
53
Terminal
Description
L
Power supply
N
Neutral
Unnamed
PTC element – two wires
11
Relay common
12
Relay NO – Error condition
14
Relay NC – Ok condition
Page 8
Technical manual SE-G1
6.2. Compressor with soft starter
1
L1
L2
L3
N
PE
2
F1
3
4
5
6
7
F4
1
0
8
F3
9
10
11
12
4A
Q1
01
F2
S1
K1
8
B1
S2
K1
8
K2T
9
F13
8
N1
K1
8
F5 P>
B1 ϑ
F6 P<
L1 - Black
L2 - Brown
L3 - Blue
L1
L2
L3
1
2
M1
1
2 M3
3
R1..6
ϑ
K1
8
11
L
SE-G1
N
14
12
F13
2
3
4
R7
5
R8
6
7
H1
K1
K2T
Y1
300s
Page 9
6.3. Legend for the schematic
diagrams
Legend
B1
Control unit
F1
Main fuse
F2
Compressor fuse
F3
Control circuit fuse
F4
Oil heater fuse
F5
High pressure limiter
F6
Low pressure limiter
F13
Thermal motor overload relay
H1
Signal light “Compressor fault”
K1
Motor contactor
K2T
Time relay Short cycling delay
M1
Compressor
N3
Soft starter (ramp up time < 2s)
Q1
Main switch
R1-6
PTC sensors in motor windings
R7
PTC Discharge gas temperature sensor
R8
Oil heater
S1
Control switch
S2
Manual reset
Y1
Liquid Line Solenoid Valve
Page 10
Technical manual SE-G1
6.4. Technical data
Technical specifications
Operation voltage
110-277 VAC, 50-60Hz, 3VA
Motor voltage
200...600V +/- 10%, 50/60 Hz
Permitted ambient temp.
-30°C ~ +60°C
Relay
Switch voltage 250V ~
Continuous current max. 2.5A
Swiching capacity 300VA, C300
Relative humidity
5% - 95%RH, non condensing
L1, L2 and L3 cable
Length 300 mm
Connector Ring connector for 1/4” stud
L1 – Black
L2 – Brown
L3 – Blue
PTC measuring circuit
Sensor type:
Thermistors according to DIN 44081/82, thermistor type:
1 - 9 in series R total < 1,8 kΩ
Switching point:
Relay off > 11,4 kΩ +/- 5%
Relay on < 2,9 kΩ +/- 5%
Fuse required
4A quick blow
Enclosure class
Terminals IP00
Terminals
Spade connectors 6,3 mm * 0,8 mm / 1/4”
Field wiring markings
Use 60°C copper conductors only
Page 11
7. Drawings
Mounting is for standard rail 35 mm according to DIN EN
60715 or with screws.
26
68,3
3,0
10,0
80,5
16
3,2
4,5
35,3
Sach-Nr. /
Ident-No.
Anschlu
Supp
34704301
AC. 50/60H
53
Lodam electronics A/S
Kærvej 77
DK-6400 Sønderborg
Phone: (+45) 7342 3737
Fax: (+45) 7342 3730
www.Lodam.com
Proprietary and confidential
The information contained in this
drawing is the sole property of
Lodam electronics A/S.
Any reproduction in part or as a whole
without the written permission of
Lodam electronics A/S is prohibited.
Page 12
Technical manual SE-G1
8. Standards
9. Trouble shooting
The product is manufactured according to the following
Check if there is power to the unit according to
standards.
• RoHS 2002/95/EC
specification.
• Low voltage 206/95/EC
If the power is ok:
• Turn off the power for 5 seconds and see if the relay is
• 61010-1 Safety requirement for electrical equipment for
measurement and control
• EMC 2004/108/EC
• 61000-6-x Generic EMC
The following standards have been used
• EN 61010-1
Safety requirement for electrical equipment for measurement and control
• EN 61000-6-1 Immunity for domicil, profession and light
industry
• EN 61000-6-3 Emission for domicil, profession and light
industry
• UL 508
• UL file number: E334756
energized after power on again.
If not, turn off all the power to avoid risk of injury!
• Unmount one of the cables to the PTC element in the
motor
• If the measured resistance is above 11,4 kΩ ±5%, the
temperature of the PTC-sensor is above the threshold
limit and the relay has been released to protect the
motor or installation.
• If the measured resistance is more than 1 MΩ, there is a
broken connection to the PTC-sensor and the relay will
not be engaged.
• If the measured resistance is close to 0 Ω, there is a
short circuit on the PTC-sensor cables and there is no
overheat protection!
• If all three phases are within range and resistance is
below 2.9 kΩ ±5%, the protection module may be
defect and needs replacement.
Page 13
10. Index
C
Compressor with soft starter 9
Connection 8
D
Definitions 5
Drawings 12
F
Functions 7
H
How to... 6
M
Motor voltage 11
Mounting 12
O
Operation voltage 11
P
Phase failure monitoring 7
R
Rotation direction monitoring 7
S
Standards 13
T
Technical data 11
Temperature monitoring 7
Trouble shooting 13
Page 14
Technical manual SE-G1
11. Notes
Page 15
Innovative and energy saving
climate control
•
•
•
•
•
•
23-01-2015 Contents are subject to change without notice.
When it comes to climate control Lodam is one of the most experienced you can turn to. For
more than four decades we have developed, produced and implemented electronic solutions
dedicated to optimising applications like:
Compressors
Condensing units
Heat pumps
Air conditioning
Refrigerated truck and trailer
Reefer containers
We know the importance of reliable, energy-efficient operation – and constantly push technological­boundaries to bring you the most innovative and forward-thinking solutions.
As part of the BITZER Group we are backed by one of the world’s leading players in the
refrigeration and air conditioning industry. This alliance provides us with extensive network and
application knowhow and allows us to stay at the forefront of climate control innovation. And
to help ensure comfortable surroundings for humans and reliable protection of valuable goods
anywhere in the world.
For more information visit:
Lodam electronics a/s
Kærvej 77
6400 Sønderborg
Denmark
www.lodam.com
Tel. +45 7342 3737
Fax +45 7342 3730
[email protected]